Okay, probably a "Duh" answer floating in front of my face but I can't see it. I dumped my copy of Paper Mario The Thousand Year Door to an USB drive, installed Dios Mios 2.10 and R1218 of USB Loader GX.
The game runs fine off of USB, but whenever I try to run it using Ocarina for codes, it gives the oh so annoying "Dios Mios Screen-to-Never ending black screen." It just sits there until I turn off the Wii itself.
The game is in the generic root folder "games" and the codes in the generic "codes" folder both on the root of the USB, it registers that the codes exist, but the game itself won't load with them on, yet loads just fine with the Ocarina setting turned off. Not sure why, but as I said, probably a "Duh" answer in front of my face. So does anyone mind pointing it out?
EDIT: Probably should point out that the IOS is 249 for both loader and game, Progressive patch is off, NMM mode off as well, and the Block IOS Reload setting is off but is this one supposed to be on?